An Atmospheric Railway is a railway so called in consequence of the motive power being derived from the pressure of the atmosphere, or from compressed air. The idea of thus obtaining motion was first suggested by the French engineer Papin, about 1700. In 1810, and again in 1827, a Mr. Medhurst published a scheme for 'propelling carriages through a close-fitting air-tight tunnel by forcing in air behind them' and in 1825 a similar project was patented by a Mr. Yallance of Brighton. About 1835 a Mr. H. Pinkus, an American residing in England, patented a pneumatic railway. The carriages were to travel on an open line of rails, along which a cast-iron tube of between 3 and 4 feet diameter was to be laid, having a longitudinal slit from 1 to 2 inches wide and closed by a flexible valve along its upper side, through which a connection could be formed between the leading carriage and a piston working within the tube. This method was improved by Messrs. Clegg and Samuda, who in 1840 tried some experiments on a portion of the West London Railway with sufficient success to induce the government to advance a loan to the Dublin and KingstownRailway Company, for the construction of a pneumatic line from Kingstown to Dalkey. It was opened for passenger traffic at the end of 1843, and was worked for many months. The London and Croydon Company subsequently obtained powers for laying down an atmospheric railway by the side of their other line from London to Croydon, and in experimental trips in 1845 a speed of 30 miles an hour was obtained with sixteen carriages, and of 70 miles an hour with six carriages. But during the intense heat of the summer of 1846 the iron tube frequently became so hot as to melt the composition which sealed the valve, and the line had to be worked by locomotives. The mechanical difficulty of commanding a sufficient amount of rarefaction led to the abandonment of the system for railway purposes. It was revived, however, for the conveyance of letters and
arcels in towns by means of tubes of moderate diameter laid beneath the streets, but not proceeded with. Within offices, however, atmospheric railways or rather pneumatic despatch systems are used notably within the supermarket chain Sainsburys where cash from tills is put into a cylindrical container which is closed and inserted into a pressurised pipe system for conveyance to the cash office. Research Atmospheric Railway
A calumet is a kind of pipe used by the American Indians for smokingtobacco. Its bowl is usually of soft red soapstone, and the tube a long reed ornamented with feathers. The calumet was used in the ratification of all solemn engagements, both of war and peace. To accept the calumet was to accept the proposed agreement, and to reject it was to reject the agreement. Research Calumet
In grammar, a diminutive is a word having a special affix which conveys the idea of littleness, and all other ideas connected with this, as tenderness, affection, contempt, etc. The opposite of diminutive is augmentative. In Latin, diminutives almost always ended in lus, la, or lum; as Tulliola, meum corculum, little Tullia, my dear or little heart; homunculus, a manikin. The Italian is particularly rich in diminutives and augmentatives, such compound diminutives as fratellinucciettinetto (a diminutive of frate, brother) being sometimes employed. Among English diminutive affixes are kin, as in manikin, a little man: pipkin, a little pipe: ling, as in gosling, a little goose; darling, that is, dearling, or little dear; and et, as in pocket, from poke, a bag or pouch; tablet, a little table. Diminutives are also formed, in colloquial and familiar language, by adding y or ie to the names, as Charley, Mousie, etc. Research Diminutive
A drain-trap, a contrivance to prevent the escape of foul air from drains, but to allow the passage of water into them. The most common form is a bent pipe resembling a letter U, whence the name U-bend, found in the plumbing of sinks and toilets. Research Drain-Trap
In agriculture, draining is a method of improving the soil by withdrawing the water from it by means of channels that are generally covered over. The successful practice of draining in a great measure depends on a proper knowledge of the superficial strata, of their situation, relative degrees of porosity, etc. Some strata allow water to pass through them, while others more impervious force it to run or filtrate along their surfaces until it reaches more level ground below. In general where the grounds are in a great measure flat and the soils of materials which retain the excess of moisture, they require artificial means of drainage to render them capable of yielding good crops whether of' grain or grass.
The wetness of land which makes it inferior for agricultural purposes, may appear not only as surface-water but as water which flows through the lower strata, and to draw off these there are the two distinct operations of surface-draining' and under-draining. The rudest form of open drains are the deep furrows lying between high-backed ridges, and meant to carry off the surplus water after the soil is completely saturated, but in doing so they generally carry off also much of the best of the soil and of the manure which has been spread upon it. The ordinary ditch is a common form of water-course useful in certain cases, as in hill pastures. But covered drains at a depth of one metre or so are the common forms in draining agricultural lands. They are generally either stone-drains or tile-drains. Stone-drains are either formed on the plan of open culverts of various forms, or of small stones in sufficient quantity to permit a free and speedyfiltration of the water through them. The box-drain, for instance, is formed of flat stones neatly arranged in the bottom of the trench, the whole forming an open tube.
In tile-drains, tiles or pipes of burnt clay are used for forming the conduits. They possess all the qualities which are required in the formation of drains, affording a free ingress to water, while they effectually exclude vermin, earth, and other injurious substances.
Drainage tiles and pipes have been made in a great variety of forms, the earliest of which, since the introduction of thorough draining, was the horse-shoe tile, so called from its shape. These should always rest on soles, or flats of burned clay. Pipe tiles, which combine the sole and cover in one piece, have been made of various shapes, but the best form appears to be the cylinder.
An important department of draining is the draining off of the waters which are the sources of springs. Sometimes the judicious application of a few simple drains, made to communicate with the watery layers, will often dry swamps of great extent, where large sums of money, expended in forming open drains in the swamp itself, would leave it but little improved.
In the laying out of drains the first point to be determined is the place of outfall, which should always afford a free and clear outlet to the drains, and must necessarily be at the lowest point of the land to be drained. The next point to be determined is the position of the minor drains; in the laying out of which the surface of each field must be regarded as being made up of one or more planes, as the case may be, for each of which the drains should be laid out separately. Level lines are to be set out a little below the upper edge of each of these planes, and the drains must then be made to cross these lines at right angles. By this means the drains will run in the line of the greatest slope, no matter how distorted the surface of the field may be. All the minor drains should be made to discharge into mains or submains, and not directly into an open ditch or water-course. As a general rule there should be a main to receive the waters of the minor drains from every 5 acres.
The advantages of drainage are obvious. In the first place it allows the soil to be brought into a more suitable condition for the growth of plants, aiding in producing the finely-divided and porous state by which the roots and rootlets can spread themselves at will in order to obtain the needed supplies of food, air, and moisture. It also allows the sun's rays to produce their full effect on the soil and plants without being robbed of great part of it by the stagnant water. Research Draining
The hookah (narghileh) is an Orientalpipe, having the bowl attached to a vase containing water, through which the smoke passes with the purpose of cooling it, before entering a long flexible tube conveying it to the mouthpiece. Research Hookah
The Leamington stove was a form of kitchener or kitchen range exhibited at the Great Exhibition of 1851 where it won a first-class prize medal and was again exhibited in an improved version at the Dublin Exhibition of 1853. The Leamington Stove was a single fire stove with a hot plate large enough for several vessels to stand upon and be kept boiling; a very well ventilated and spacious wrought iron roaster with movable shelves, draw-out stand, double dripping-pan and meat-stand. The roaster could be converted into an oven by closing the valves, allowing bread and pastry to be baked. The Leamington Stove also had a large iron boiler with brass tap and steampipe, round and square gridirons for cooking chops and steaks, ashpan, open fire for roasting and a set of ornamental covings with plate-warmer attached. Research Leamington Stove
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Abbreviations
Research Atmospheric Railway
